HAAT Calculator & Elevation Finder

Calculate elevation and height above average terrain (HAAT) using the FCC's API.

NAD83 Latitude:
- ' " *

NAD83 Longitude:
- ' " *

Radiation Center Height:
meters   *

- Above Mean Sea Level (RCAMSL)
- Above Ground Level (RCAGL)

Number of Radials:

Terrain Database:

Legacy FCC30 terrain is not available through the FCC API. Use the FCC HAAT Calculator instead.

Station Class for ERP Check: (optional)

Decimal Coordinates:
Latitude: 36.756333
Longitude: -121.502417

Site Elevation:
927.23 meters

Radiation Center Above Mean Sea Level (RCAMSL):
0 meters

Height Above Average Terrain:
-296 meters, based on 8 radials.
(rounded from -295.57 m)

HAAT Along Each Radial:

Azimuth HAAT
0-186.74
45-242.02
90-388.55
135-718.89
180-304.99
225-123.06
270-162.66
315-237.67